Spark plug

Assignee

• Ngk Spark Plug Co.

Inventors

• Katsuya Takaoka (25 patents)
• Kazuhiro Kurosawa (9 patents)
• Kuniharu Tanaka (34 patents)
• Hisashi KOZUKA (13 patents)
• Toshitaka Honda (55 patents)
• Hirokazu Kurono (41 patents)
• Haruki Yoshida (83 patents)
• Hironori Uegaki (26 patents)

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